package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.minio.MinioConfiguration;
import com.atguigu.lease.common.minio.MinioProperties;
import com.atguigu.lease.web.admin.service.FileService;
import io.minio.*;
import io.minio.errors.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import javax.xml.crypto.Data;
import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

@Service
public class FileServiceImpl implements FileService {

    @Autowired
    private MinioProperties minioProperties;
    @Autowired
    private MinioClient minioClient;
    @Override
    public String upload(MultipartFile file) throws ServerException, InsufficientDataException, ErrorResponseException, IOException, NoSuchAlgorithmException, InvalidKeyException, InvalidResponseException, XmlParserException, InternalException {

        boolean b = minioClient.bucketExists(BucketExistsArgs.builder()
                .bucket(minioProperties.getBucketName())
                .build());

        if(!b){
            minioClient.makeBucket(MakeBucketArgs.builder()
                    .bucket(minioProperties.getBucketName())
                    .build());
            String policy = """
                {
                  "Statement" : [ {
                    "Action" : "s3:GetObject",
                    "Effect" : "Allow",
                    "Principal" : "*",
                    "Resource" : "arn:aws:s3:::%s/*"
                  } ],
                  "Version" : "2012-10-17"
                            }
                """.formatted(minioProperties.getBucketName());
            minioClient.setBucketPolicy(SetBucketPolicyArgs.builder()
                    .bucket(minioProperties.getBucketName())
                    .config(policy)
                    .build());
        }
        String fileName = UUID.randomUUID()
                + new SimpleDateFormat("yyyyMMddHHmmss").format(new Date())
                + file.getOriginalFilename();

        minioClient.putObject(PutObjectArgs.builder()
                        .bucket(minioProperties.getBucketName())
                        .contentType(file.getContentType())
                        .object(fileName)
                        .stream(file.getInputStream(), file.getSize(), -1)
                .build());

        return String.join("/",minioProperties.getEndpoint(), minioProperties.getBucketName(),fileName);
    }
}
